An aerosol provision system for generating an aerosol from a source liquid, the aerosol provision system comprising: a reservoir of source liquid； a planar vaporiser comprising a planar heating element (455, 555, 655), wherein the vaporiser is configured to draw source liquid from the reservoir to the vicinity of a vaporising surface of the vaporiser through capillary action； and an induction heater coil operable to induce current flow in the heating element to inductively heat the heating element and so vaporise a portion of the source liquid in the vicinity of the vaporising surface of the vaporiser. In some example the vaporiser further comprises a porous wadding / wicking material, e.g. an electrically non-conducting fibrous material at least partially surrounding the planar heating element (susceptor) and in contact with source liquid from the reservoir to provide, or at least contribute to, the function of drawing source liquid from the reservoir to the vicinity of the vaporising surface of the vaporiser. In some examples the planar heating element (susceptor) may itself comprise a porous material so as to provide, or at least contribute to, the function of drawing source liquid from the reservoir to the vicinity of the vaporising surface of the vaporiser.
